User Guide

893-01019-A
1-1
Chapter 1
Overview of the TokenSpeed Module
This chapter introduces the 8-port TokenSpeed module and covers the following
topics:
• A summary of module functions, capabilities, and features (starting on this
page)
• A physical description of the module printed circuit board and the board in
relation to the Centillion switch chassis (see page
1-4)
About the TokenSpeed Module
The 8-port TokenSpeed module inserts into one slot of a Centillion 100 or
Centillion 50 switch chassis to provide token ring ports and, optionally, an
integrated master control processor (MCP). This module replaces earlier module
versions that provided only four ports. The TokenSpeed module comes in the
following configurations:
• A TokenSpeed module with eight switched token ring ports with RJ-45
connectors for unshielded twisted pair (UTP) or shielded twisted pair (STP)
cable
• A TokenSpeed/MCP module with eight switched token ring ports with RJ-45
connectors for UTP/STP cable and a serial port implemented on a Mini DIN 8
connector
These modules offer identical functional features for token ring connectivity.
In addition to providing token ring connectivity, a TokenSpeed/MCP module also
manages the Centillion switch. The MCP port can be used to connect a network
management station. One (and only one) MCP module is required for each
Centillion chassis; however, an ATMSpeed/MCP or EtherSpeed/MCP module
can also be used to meet this requirement.
TKNSPD.BK Page 1 Thursday, July 17, 1997 11:43 AM